$$\( \mathrm{f}(x)=4-3 x \quad \mathrm{~g}(x)=x^{2}+x \quad \mathrm{~h}(x)=3^{x}\)$$ Find $$\(f h(2)\)$$. .............................................
Exam No：0580_w20_qp_43 Year：2020 Question No：10(a)
Answer:
-23
Knowledge points:
E2.9.1 Use function notation, e.g. f(x)=3x-5, f:x↦3x-5, to describe simple functions.
E2.9.3 Form composite functions as defined by gf(x)=g(f(x)).
Solution:
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